Radiator aud method osi making sams



E. FLORY RADIAT OR AND METHOD OF MAKING SAME 2 Sheets-Sheet 1 Filed Nov. 20 1922 u tututututututututut O 0 0 0 0 t O Q t fju'qe 1925. 1,549,390

, E. FLORY RADIATOR AND fiETI-IOD OF MAKING SAME Filed Nov. 20, 1922 2 Sheets-$heet 2 6 y/ AZ lnveniwwf Zrzmsw Patented June .2, i925.

ERNEST FLOBY, 0F LO'WELL,

MASSACHUSETTS, ASS.=G-IIOE T6 UNITED STATES CAB.- TRIDGE (10., O1? LONELL, CORP ORATIU'N 0F MASSACHUSETTS.

RADIATOR AND DEETHOFJ 0F EKAKING SAIEE. I

Application filed November 20, 1922. Serial No. 602258.

To all whom it may concern:

Be it known that I, Ennnsr FLoRY, a citizen of the United States of innerica, and resident of Lowell, in the county of Middlesex and State of Massachusetts, have in vented new and useful Improvements in Radiators and Methods of Making game of which the following is a specification.

This invention relates to heat radiators of the type comprising a plurality of tubes mounted together in unitary assemblage with fluid spaces therebetween and more particularly to an improved method and means for confining the fluid space at the sides of the radiator, the top and bottom of the radiator ordinarily being covered by fluid chambers.

In building up radiators of the tubular type'for automobiles and other uses it is customary to expand'the heads of the tubes into hexagonal or other polygonal form so that when the tubes are assembled together the heads interfit in close relationship but the tubes themselves are spaced from each other; this relation the assemblage is clamped together and the ends 01 the tubes are dipped into hot solder for the purpose of integrally uniting the expanded ends.

The means for confining the spaces between the tubes at the sides of the radiator usually comprlses sheets of metal soldered to the outer rows of tubes at the sides of the assemblage. With the side walls thus associated with the tubes it has been difficult tightly tosecure the side walls so that no leaks occur between the walls and the outer rows of tubes, and after the structure has been completed the walls have a tendency to loosen from the tubular assemblage when subject to vibration or impact.

The objects of the present invention are to associate the side walls with the assemblage of tubes so that a firm joint connection can be readily secured and so that the side walls are protected from injury after the radiator core has been completed.

The invention consists in means for pressing the side walls tightly against the polygonal ends-of the radiator tubes while the side walls are being soldered or otherwise secured to the tubes, said means being fastened to the outer sides of the side walls to protect the walls after the tube assemblage has'been' completed. When the tubes After the tubes are assembled in sides.

are assembled with their polygonal ends interfitting the exposed sides of the ends present a zigzag outline at the side of the assemblage. The side wall which is to be soldered or otherwise attached to said posed sides of the ends is shaped to have a similar outline so as to interlit with the ends. The aforesaid means for pressing the side wall against the tube ends also has a similar outline adapted to interfit with the outside of the wall. said means preferably comprising inter-fitting tubes having polygonal ends substantially identical with the end of the radiator tubes. The parts are clamped together in interfitting relationship and the side wall is soldered to the ends of the radiator tubes. The side wall is also preferably secured to the tubes or other pressure means, outside the wall so that the latter are incorporated as an integral part of the radiator.

In order to illustrate the nature of the invention certain concrete embodiments have been shown in the accompanying drawings, in which Fig. 1 is an end view of a rectangular radiator core, a portion being broken away;

F ig. 2 is a similar view of a tapered core such as used in certain automobiles;

Fig. 3 ing the mechanism for clamping the parts together; and

Fig. 4. is a section on line H of Fig. 3, further illustrating the construction of the clamping mechanism and indicating the step of dipping the ends of the assembled tubes in the hot solder.

The particular embodiment of the invention shown in Fig. 1 comprises a plurality of tubes 1 havin hexagonal ends assembled together in interntting relationship and side walls 2 between the outermost rows of tubes at each side of the radiator. lVhile the side walls 2 may be set in any desired distance from the sides of the core they are preferably set in only one row removed from the These side walls are preferably formed of sheet copper and are correlated to fit between the hexagonal ends of the tubes.

In applying the invention to a tapered core such as shown in Fig. 2 the side walls 2' may be shaped as shown in Fig. l and be disposed in a vertical body as shown at the left of Fig. 2 or they may be shaped irreguis a view similar to Fig. 1', showlarly tofitbetween the outermost rows, of

tubesasshown at the right of Fig. 2. the esends of sential condition being that the side. walls.

are completely covered on the outside with radiator, tubes.

The meansfor clamping the assemblage of tubes together shown in Fig. 3 comprises.

a rectangular frame 2-3 and pressure bars 4. 5, 6 and 7 mounted in the frame by means of t'lClJUStilblG screws 8, the bars being lorced finwardly by threading the nuts 9 outwardly against the outer frame and liieing held in position by. loch nuts ill on the out "e of the frame The bars and 7 are provided with slots 11 to receive the tenons 12 at the the bars at and i so that alliour bars ,may lie in the same plane at the same time and be n'ioved inwardlvund outwardl inde- J pendently of each other.

As indicated in Fig. 4 the bars tha 6 and 7 engage the tubes: only throughout. theeentral ortions of the tube. leaving the ends of the tubes projecting between the frame.

to the bottom of the core.

. zyell as the inside.

r-i'ltcr the tubes are securely clamped into position with. the side walls 2 pressed into intimate contact both with the tubes inside .the walls and also with the tubes outside thereof, the ends of the tubes and side walls are dipped into hotsolder as indicated in Fig. thereby integrally to join the expanded ends of the tubes together and to the opposite sides of the side walls 2.

,the present invention theirregular rows of tubes at the sides of the core-need not be flattened before the side walls are attached, thereby obviating the diiiieulty of securing a tight ointas a result of? flattening the tubes.

However, it. will be understood that after the side walls are securely united to the tubesas i-llustratediniFig. 2 the irregularcontour of the sides of the-core may be converted into approximately straight sides by flattening the tubesfoutside oi the side walls; and inasmuch as these are dummy tubes there is no danger bf leaks resulting i-fromthis flattening.

' From the foregoing description it will be .evident that the side walls are brought into more lntimate contact with the tubes inside thereof by virtue of the inter-fitting tubes outside. ofthe .walls pressing inwardly thereagainst throughout their extent from the top I It will also be Seen that the side walls are supportedmore fsubstantiallyand permanently inasmuch as they are united with tubes on the outside as Moreover the dummy tubes mounted together in predetermined relationship to form a unitary assemblage with fluid space therebetween, means for confining said. space including a wall extending along one side of said assemblage,

and other tubes mounted outside said wall in substantially the same relationship to each other and to the tubes inside the/wall.

3. A radiator comprising a plurality of tubes mounted together in predetermined relationship to form aunitary assemblage with fluid space therebetween, means for confining said space including a wall extending along one side of said'assemblage, and other tubes mounted"outside-said wall in substantially the same relationship '{to each otherand to-the tubes inside the wall, the outside tubes covering substantially the entire outer surface of said wall.

4;. A radiator comprising a-plurality of tubes mounted togetherin predetermined relationship toforma unitary assemblage with fluid space therebetween, means for confining said space including a wall-extending along oneside-of said assemblage, and a single row-oftubes mounted outside said wall in substantially the same relationship to each other and "to the tubes inside the wall.

5. A radiator comprising an assemblage ottubes of the type having expanded polvgonal ends interfitting together to forrn a 'fluid space between the tubes, and means for confining said space including a wall extending between the tubes nearone side "of the radiator and interfitting between the heads of juxtaposed tubes atthe-endsof'the radiator.

the polygonal ends 'interfitting together and presenting a zig-zag outline at the side of the assemblage, fitting a side wall having a similar outline against said ends at the side of the assemblage, fitting pressure means having a similar outline, against the outer side of said wall, clamping the parts together, and integrally uniting said wall with the interfitting ends of the juxtaposed tubes while the parts are clamped together.

8. The, method of making a radiator to a plurality of tubes having polygonal ends which comprises assembling the tubes with the polygonal ends interfitting together and presenting a zig-zag outline at the side of the assemblage, fitting a side wall having a similar outline against said ends at the side of the assemblage, fitting pressure means having a similar outline, against the outer side of said wall, clamping the parts together, and integrally uniting said wall with the interfitting ends of the juxtaposed tubes and also with the pressure means while the parts are clamped together, whereby the pressure means is incorporated as an integral part of the radiator.

9. The method of making a radiator of a plurality of tubes having expanded polygonal ends which comprises assembling the tubes with their polygonal heads interfitting with each other and with a Wall interfitting between the heads of juxtaposed tubes, clamping the parts in this relationship with the heads of the tubes adjacent the wall pressing against both sides thereof, and integrally uniting the hexagonal heads to each other and to opposite sides of the wall while the parts are so clamped.

10. The method of making a radiator of a plurality of tubes having expanded polygonal ends which comprises assembling the tubes with their polygonal heads interfitting with each other and with a wall interfitting between the heads of juxtaposed rows of the tubes, clamping the parts in this relationship with the heads of the tubes adjacent the wall pressing against both sides thereof, and dipping the ends of the tubes and wall into molten solder while so clamped.

Signed by 'me at Lowell, Massachusetts, this eighth day of November 1922.

ERNEST FLORY. 

